Steam-boiler furnace



(No Model.) 2 Sheets-Sheet 1. J.'P. TUT TLE.

STEAM BOILER FURNACE.

No. 323,375. Patented July 28, 1885 Fig.1.

WITNESSES INVENTOR QAM ATTORNEY n. PETERS. Phowume n hm, Wnmnglcn. u. c.

(No Model.) 2 Sheets-Sheet- 2.

J. P. TUTTLE.

STEAM BOILER FURNAUE.

No. 323,375. Patented July 28. 1885.

WITNESSES V INVENTOR A ATTORNEY N. PEIERS. Phnlo-Liihagnpber, Wzdlingon. D. C.

ascending tlne at the rear end of the boiler; G,

nrrnn TATES Parent @rrrcn.

JOSEPH P. TUTTLE, OF ONONDAGA VALLEY, NEW YORK.

STEAM-BOILER FURNACE.

SPECIFICATION forming part of Letters Patent No. 323,375, dated July 28, 1885.

Application filed November 10, 1884. (N0 model.)

To aZZ whom it may concern.- laterally nearly concentric to the boiler above Be it known that I, JOSEPH P. TUTTLE, of it. This pipe is provided with numerous small Onondaga Valley, in the county of Onondagaperforations, which are directed forward for the and State of New York, have invented ceri purpose of injecting highly-heated steam over tain new and useful Improvements in Steam l the bed of incandescent fuel on the grate, Boiler Furnaces and I do hereby declare that which steam will furnish a free supply of oxythe following is a full, clear, and exact descripgen gas, which will combine with the gaseous tion thereof, reference being had to the acco1nproducts of combustion and form carbonicpanyin g drawings, and to the letters of referoxideand carbonic-acid gases. Theperforated ence marked thereon, which form part of this injecting-pipe H communicates with pipes specification, in which i H H, which are located along the sides, Figure 1 is a longitudinal section taken verl inside, of the furnace-walls A A, which pipes tically through a horizontal steam boiler and are formed into coils c c for the purposeof furnace, showing my smoke-consuming degreatly increasing the heating capacity of the vices applied to it. Fig. 2 is a front elevapipes. The pipes H H are carried up from tion of the same with the front plates removed. the tire-chamber of the furnace and united to Fig. 3 is a top view of my heat-retainer. Fig. ahorizontal pipe, H which extends across the 4 is a bottom view of the same. Fig. 5 is a smoke-box G, where it receives additionalheat longitudinal section taken centrally through 3 from the products of combustion on their way the retainer. to and through a heat arrester and retainer, This invention relates to means for consumwhich will be hereinafter described. The crossing smoke in steam-boiler furnaces which are pipe H communicates by means of a pipe or especially designed for burning soft or bituhose, H with a water-forcing engine or with minonsv coal; and it consists, first, in a novel a suitable head of water, the supply of which retainer arranged in the smoke-box, and decan be regulated, according to the amount of signed for arresting the heated products of firesurfacc and the heat required, by means combustion in said box long enough to effectof a cock, (I, applied to the pipe or hose H perfect combustion of the carbonaceous mat- J designates a rectangular flanged frame, ter and the gases; second, in means for facili which is supported horizontally in the smoketating combustion in the firechamber and box G by means of side ledges, f f. This directing the heated gases about the entire frame is arranged above the horizontal plane surface of the boiler-shell, which is inclosed in of the highest series of boilenflues, and it is the furnace-walls, all of which will be fully removable from the smoke-box through anianunderstood from the following description, hole at the front end of the steam-boiler. In when taken in connection with the annexed this frame J is supported my improved heatdrawings. retainer and arrester of any light carbonace- A A designate the fire-brick furnace-walls, ous matter and ash on their way to the upand B acylindrical boiler mounted therein take. This heat-retainer is preferably made and constructed withfluesaa, secured to heads of two or more sections, as shown, each section being constructed as follows: K K desigb b in the usual well-known manner of making a return-flue boiler. U designates the ashnate two plates, which are secured together by pit of the furnace; l), the fire chamber above means ofangular bridges LL, and constructed with convex inner edges, Z l, with a space hethe grate; E the contracted flue beneath the boiler, formed by the bridge-wall F; E, the tween them which diverges from the middle of their length to their ends, as shown in Fi 4 of the drawin The feet of the bridges L L are riveted to the plates K K, and to the tops of the bridges a plate, N, is riveted, which plate is parallel to the plates K K, and it is constructed with concave or scalloped edges no, as shown in Fig. 3. The course of the ascending currents through the retainer is indicated the SillOlidbOX at the front end of the boiler, and G the uptake. All of the parts abovedcscribcd are old and well known.

The front part, I), of the bridge-wall inclines forward and t'lown ward to a point level with the grate, clined plane 1 apply a pipe,

and at the highest part of this in- H, which is curved by the arrows in Fig. 1. It will be seen that l the gaseous products first pass between the l bottom plates, K K, then strike the plate N, and are then deflected horizontally forward and backward over the bottom plates. By curving the edges of the plates, as described, the ascending heated products will be uniformly distributed laterally in thesmohe-box.

This devicejust described is not only a heatretainer, but, by reason of its becoming intensely hot, it will materially aid in the process of combustion in the smoke-box, and also arrest soot and ash. It furthermore arrests the draft of the furnace, so that combustion of inflammable elements in the tire-chamber and tines is greatly increased.

Having described my invention, I claim 1. In a steam-boiler furnace, alaterallyeoncave bridge-wall, the concave top of which forms a flue with the convex shell of the boiler, and the front surface of which forms an inclined and concave fire-bed at the rear part of the fire-box, substantially as specified.

2. The combination of the laterally-concave steam-injecting pipe, its side pipe-coil connections, its front pipeconnection located in the smoke-box, and a pipe provided with a cock and leading to water vessel, substantially as described.

3. The combination, with the smoke-box, of a heat retainer composed of plates having curved edges and connected by bridges and a removable supporting-frame, substantially as and for the purposes described.

In testimony that I claim the foregoing as my own I aflix my signature in presence of two witnesses.

JOSEPH P. TUTTLE.

\Vitnesses J. WM. XVILsoN, (iro. II. SEARS. 

